<template>
  <!-- template===模板 -->
  <!-- demo 演示；样品 -->
  <div>
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item><a href="/">用户管理</a></el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索输入框 -->
      <!-- el-row=>每一行  el-col=>每一列  栅格系统 -->
      <!-- :gutter来指定每一栏之间的间隔，默认是0 -->
      <el-row :gutter="20">
        <!-- 第一行 -->
        <el-col :span="7">
          <!-- v-model实现数据双向绑定 -->
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <!-- @click=""  绑定事件处理函数 -->
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <!-- 第二行 -->
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <!-- v-model 判断布尔值    slot-scope接收数据  scope.row拿到这一行的数据-->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <!-- slot-scope接收作用域插槽,接收到scope这个作用域对象-->
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" icon="el-icon-edit" size="small" @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger" icon="el-icon-delete" size="small" @click="removeUserById(scope.row.id)"></el-button>
            <el-tooltip effect="dark" content="设置" placement="top-start" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="small"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <el-row>
        <!-- layout展示什么组件 -->
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[5, 10, 20]"
          :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total">
        </el-pagination>
      </el-row>
    </el-card>
<!-- -----------------------------------------------------------------超级分割线---------------------------------------------------------------------- -->
    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主体区域 -->
      <!-- :model  数据绑定   :rules   设置规则  ref引用对象  v-model数据双向绑定 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username" clearable></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
           <el-input v-model="addForm.password" clearable></el-input>
           </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email" clearable></el-input>
          </el-form-item>
          <el-form-item label="电话" prop="mobile">
            <el-input v-model="addForm.mobile" clearable></el-input>
          </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- ------------------------------------------------------------------我是分割线---------------------------------------------------------- -->
    <!-- 修改用户对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed()">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
  <el-form-item label="用户名">
    <!-- disabled禁用 -->
    <el-input v-model="editForm.username" disabled></el-input>
  </el-form-item>
  <!-- prop校验规则 -->
    <el-form-item label="邮箱" prop="email">
    <el-input v-model="editForm.email"></el-input>
  </el-form-item>
    <el-form-item label="电话" prop="mobile">
    <el-input v-model="editForm.mobile"></el-input>
  </el-form-item>
    </el-form>
      <span slot="footer" class="dialog-footer">
       <el-button @click="editDialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  // 组件持有数据
  data () {
    // 验证邮箱的规则
    var checkEmail = (rule, value, callback) => {
      // 验证邮箱的正则表达式
      const regEmail = /^\w+((-\w+)|(\.\w+))*@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/
      if (regEmail.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, callback) => {
      // 验证手机号的正则表达式
      const regMobile = /^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/
      if (regMobile.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的手机号'))
    }
    return {
      // 获取用户列表参数对象
      queryInfo: {
        query: '',
        // 当前页码数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 5
      },
      userlist: [],
      total: 0,
      // 控制对话框的显示与隐藏
      addDialogVisible: false,
      editDialogVisible: false,
      // 添加用户的表单
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      // trigger  失去焦点时验证
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名长度在3-10个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 18, message: '密码长度在6-18个字符之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 查询到的用户信息对象
      editForm: {
      },
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      }
    }
  },
  // created生命周期函数
  // 在created函数中发出首请求
  created () {
    this.getUserList()
  },
  // methods 事件处理函数
  //   singlequote  ;
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      console.log(res)
    },
    // 监听页面显示条数改变的事件
    handleSizeChange (newSize) {
      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变事件
    handleCurrentChange (newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch 开关的改变
    async userStateChanged (userinfo) {
      // console.log(userinfo)
      // 发起put请求
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败!')
      }
      this.$message.success('更新用户状态成功!')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮，添加新用户
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)

        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功!')
        // 隐藏添加用户对话框
        this.addDialogVisible = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    async showEditDialog (id) {
      // console.log(id)
      // 解构赋值
      // 动态数据，users/后面加上id；
      // 这次请求返回值是一个promise,为了简化promise操作，在方法showEditDialog()之前加上async
      // 在get之前加上await,接下来通过解构赋值的形式，从数据中结构出data属性，重命名为res
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 在确定按钮那绑定事件,用于表单预验证
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        console.log(valid)
        if (!valid) return
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        // 1.关闭对话框2.刷新数据列表3.提示修改成功
        this.editDialogVisible = false
        this.getUserList()
        this.$message.success('更新用户信息成功！')
      })
    },
    // 根据id删除用户信息
    async removeUserById (id) {
      // 弹窗询问用户是否删除
      const confirmResult = await this.$confirm('此操作将永久删除用户，是否继续', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => {
        return err
      })
      // 如果用户确认删除，则返回值为字符串 confirm否则为cancel
      console.log(confirmResult)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功')
      this.getUserList()
    }
  }
}
</script>

<style lang="less" scoped>
html,
body,
#app {
  height: 100%;
  margin: 0;
  padding: 0;
}
.el-breadcrumb {
  color: #000;
}
</style>
